| 甜瓜种子携带的链格孢菌种类鉴定及其致病性研究 |
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| 引用本文： | 俞大紱.甜瓜种子携带的链格孢菌种类鉴定及其致病性研究[J].植物病理学报,1955,1(1):1-9. |
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| 作者姓名： | 俞大紱 |
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| 作者单位： | 中国农业大学植物保护学院,北京100193 |
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| 基金项目： | 北京市西甜瓜产业创新团队(BAIC10\|2019) |
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| 摘 要： | 采用洗涤检验法和马铃薯葡萄糖琼脂培养基法,从甜瓜种子上分离得到14个链格孢菌分离物。通过菌落形态、产孢表型、分生孢子以及分生孢子梗等形态学观察,结合分析ITS-rDNA和histone 3基因序列,对链格孢菌分离物的种类进行鉴定;甜瓜种子携带的链格孢菌种类分别为细极链格孢(Alternaria tenuissima)、交链格孢(A. alternata)和倒果链格孢(A. obovoidea)。还研究了这些链格孢菌分离物对甜瓜离体叶片的致病性及其对种子发芽的影响;结果表明,除A. obovoidea外,另外两种链格孢菌均对甜瓜离体叶片具有致病性;A. tenuissima和A. alternata的孢子悬浮液对甜瓜种子发芽均有一定的抑制作用。这是国内首次围绕甜瓜种子传带链格孢菌的种类及其致病性开展详细的研究。
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| 关 键 词： | 甜瓜 种传链格孢菌 种类鉴定 致病性 种子发芽 |
A PRELIMINARY LIST OF FUSARIA IN CHINA |
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| T. F. YU.A PRELIMINARY LIST OF FUSARIA IN CHINA[J].Acta Phytopathologica Sinica,1955,1(1):1-9. |
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| Authors: | T F YU |
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| Institution: | College of Plant Protection, China Agricultural University, Beijing 100193, China |
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| Abstract: | During the past twenty-five years,the writer has made numerous isolations of Fusaria from various kinds of crop plants in China.These isolations have been critically studied.In all,approximately 1000 of them have been examined.The preliminary list given in this paper is a record of the Fusaria which the writer has seen. |
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| Keywords: | muskmelon seedborne Alternaria species identification pathogenicity seed germination |
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